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AUSCERT External Security Bulletin Redistribution
ESB-2018.1039
LCDS – Leao Consultoria e Desenvolvimento de Sistemas Ltda ME LAquis SCADA
6 April 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: LAquis SCADA
Publisher: ICS-CERT
Operating System: Windows
Impact/Access: Denial of Service -- Existing Account
Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-5463
Original Bulletin:
ttps://ics-cert.us-cert.gov/advisories/ICSA-18-095-03
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Advisory (ICSA-18-095-03)
LCDS Leao Consultoria e Desenvolvimento de Sistemas Ltda ME LAquis SCADA
Original release date: April 05, 2018
Legal Notice
All information products included in http://ics-cert.us-cert.gov are provided
"as is" for informational purposes only. The Department of Homeland Security
(DHS) does not provide any warranties of any kind regarding any information
contained within. DHS does not endorse any commercial product or service,
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For
more information about TLP, see http://www.us-cert.gov/tlp/.
1. EXECUTIVE SUMMARY
CVSS v3 7.0
Vendor: LCDS - Leao Consultoria e Desenvolvimento de Sistemas LTDA ME
Equipment: LAquis SCADA
Vulnerability: Improper Check or Handling of Exceptional Conditions
2. RISK EVALUATION
Successful exploitation of this vulnerability could cause the device an
attacker is accessing to crash, resulting in a structured exception handler
overflow condition, which may allow code execution.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of LAquis SCADA, an industrial automation software, are
affected:
LAquis SCADA software versions 4.1.0.3391 and prior.
3.2 VULNERABILITY
3.2.1 IMPROPER CHECK OR HANDLING OF EXCEPTIONAL CONDITIONS CWE-703
A structured exception handler overflow vulnerability has been identified that
may allow code execution.
CVE-2018-5463 has been assigned to this vulnerability. A CVSS v3 base score of
7.0 has been calculated; the CVSS vector string is
(AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).
3.3 BACKGROUND
Critical Infrastructure Sectors: Chemical, Commercial Facilities, Energy,
Food and Agriculture, Transportation Systems, Water and Wastewater Systems
Countries/Areas Deployed: South America
Company Headquarters Location: Joinville-SC, Brazil
3.4 RESEARCHER
Karn Ganeshen reported the vulnerability to NCCIC.
4. MITIGATIONS
LCDS recommends that users update to version 4.1.0.3774, which can be found at
the following location:
http://laquisscada.com/instale1.php (link is external)
NCCIC recommends that users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet.
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o When remote access is required, use secure methods, such as Virtual
Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and
should be updated to the most current version available. Also recognize that
VPN is only as secure as the connected devices.
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